Unless
What if and unless are semantically related. In some cases you can use "What if" instead a conjunction "Unless".
What if
Unless and what if are semantically related. You can use "Unless" instead a conjunction phrase "What if".
Mutual synonyms
Both terms in one sentence
-
Unless you're playing Orion Pirates, in which case you're likely screwed no matter what if an "X-ship" is involved.
-
Anti-Box is sort of a "what if" concerning Billy getting lucky with his victory, Billy taking a while to cross, and doesn't really make sense unless you know that plot twist from Pro-Box.
Cite this Source
What if and Unless. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/unless/what_if
Unless & What if. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/unless/what_if>.
What if or Unless. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/unless/what_if.
Google Ngram Viewer shows how "unless" and "what if" have occurred on timeline